XML 75 R61.htm IDEA: XBRL DOCUMENT
v3.24.3

Insurance Operations - Assets Held by Insurance Regulators (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Restricted cash and cash equivalents |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | $ 2,635 | $ 2,635
Restricted cash and cash equivalents | Florida |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 1,800 | 1,800
Restricted cash and cash equivalents | Georgia |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 35 | 35
Restricted cash and cash equivalents | North Carolina |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 800 | 800
Investments |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 3,532 | 3,329
Investments | Hawaii |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 2,945 | 2,762
Investments | Massachusetts |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 126 | 121
Investments | South Carolina |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 136 | 131
Investments | Virginia |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | $ 325 | $ 315

X
- Definition Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org/1943274/2147477351/944-825-50-1A + Details
Name: | us-gaap_AssetsHeldByInsuranceRegulators
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
Name: | us-gaap_StatutoryAccountingPracticesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=uve_RestrictedCashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NC
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_InvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_HI
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_MA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_SC
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_VA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |